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Tra-Con Tra-Bond 872-3 Flexible Epoxy Adhesive

Category Polymer , Adhesive , Thermoset , Epoxy
Manufacturer Tra-Con, Inc.
Trade Name Tra-Bond
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Tra-Con Tra-Bond 872-3 Flexible Epoxy Adhesive.pdf
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Material Notes:
TRA-BOND 872-3 transparent, flexible epoxy adhesive is designed for bonding materials with mismatched coefficients of thermal expansion. The long working life of this adhesive makes it ideal for use in automated dispensing processes. It readily bonds to ceramics, glass, most metals, and many plastics, and it is therefore especially useful for aerospace and electronic applications where its flexibility, consistency and self-sealing properties are needed (i.e. repottable electronic assemblies). Fully cured TRA-BOND 872-3 is a translucent electrical insulator which is mechanically strong and tougher than comparable silicone gels, and it is further resistant to water, weather, gases and vapors, petroleum products (fuels, solvents and lubricants), mild acids and alkalis, salt solutions and many other organic and inorganic compounds. Information provided by Tra-Con Inc.
Mechanical Properties Metric English Comments
Hardness, Shore A 70
70
Adhesive Bond Strength 9.65 MPa
1400 psi
Lap shear, alum to alum
Thermal Properties Metric English Comments
CTE, linear 62.0 µm/m-°C
34.4 µin/in-°F
Below Tg
240 µm/m-°C
133 µin/in-°F
Above Tg
Glass Transition Temp, Tg -11.0 °C
12.2 °F
Ultimate Tg
Optical Properties Metric English Comments
Transmission, Visible 90 %
90 %
transparent; thickness not quantified
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+12 ohm-cm
1.00e+12 ohm-cm
Dielectric Constant 6.2
6.2
Dissipation Factor 0.040
0.040
Processing Properties Metric English Comments
Cure Time 180 min

@Temperature 100 °C
3.00 hour

@Temperature 212 °F
480 min

@Temperature 75.0 °C
8.00 hour

@Temperature 167 °F
Shelf Life 12.0 Month

@Temperature -40.0 °C
12.0 Month

@Temperature -40.0 °F
Descriptive Properties Value Comments
Color Translucent
Working Life hours 8
At 25°C
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